二元杂交猪与二花脸猪初乳中几种生化组分的比较

Comparative study of some colostric components between crossbred and Erhualian breeds

于母猪分娩后2 h 内采集乳样, 分析和比较了30 头二花脸母猪和12 头二元杂交母猪 (♀二花脸×大约克) 初乳pH值、乳脂、乳糖、总乳蛋白和胰岛素样生长因子 (IGF-I) 的含量, 以及初乳中蛋白主要组分的差异, 同时对二元杂交猪和二花脸猪的窝重和产活仔数进行了比较。结果显示, 二元杂交猪初乳乳糖和IGF-I显著高于二花脸猪(P< 0.05), 而乳脂显著低于二花脸猪(P< 0.05 )。总乳蛋白和乳pH值差别不显著。二元杂交猪初乳蛋白中免疫球蛋白重链(IgH) 显著高于二花脸猪(P< 0.05), 而乳铁蛋白 (Lf) 极显著低于二花脸猪(P< 0.01), 其余变化不显著。二元杂交母猪保持了二花脸猪的高产仔率, 并且窝重显著高于二花脸猪(P< 0.05)。

The components and pH of colostrum in 12 crossbred(♀Erhualian×Yorkshire)and 30 Erhualian sows were investigated during 2 h after farrowing.Lactose and IGF I concentrations in crossbred sows were significantly higher than in Erhualian sows(P<0 05),but fat concentration was remarkably lower than in Erhualian sows(P<0 05).No significant differences in total protein concentration and pH were observed.Colostric proteins of crossbred and Erhualian sows were compared by SDS PAGE.Relative proportions of main proteins were analyzed.IgH proportion in crossbred sows was much higher than in Erhualian sows(P<0 05).Compared with Erhualian sows,Lf proportion in crossbred sows was markedly lower(P<0 01).Litter weight was much higher for crossbred vs.Erhualian sows(P<0 05),but litter sizes were similar. ABSTRACT The components and pH of colostrum in 12 crossbred(♀Erhualian×Yorkshire)and 30 Erhualian sows were investigated during 2 h after farrowing.Lactose and IGF I concentrations in crossbred sows were significantly higher than in Erhualian sows(P<0 05),but fat concentration was remarkably lower than in Erhualian sows(P<0 05).No significant differences in total protein concentration and pH were observed.Colostric proteins of crossbred and Erhualian sows were compared by SDS PAGE.Relative proportions of main proteins were analyzed.IgH proportion in crossbred sows was much higher than in Erhualian sows(P<0 05).Compared with Erhualian sows,Lf proportion in crossbred sows was markedly lower(P<0 01).Litter weight was much higher for crossbred vs.Erhualian sows(P<0 05),but litter sizes were similar. The components and pH of colostrum in 12 crossbred(♀Erhualian×Yorkshire)and 30 Erhualian sows were investigated during 2 h after farrowing.Lactose and IGF I concentrations in crossbred sows were significantly higher than in Erhualian sows(P<0 05),but fat concentration was remarkably lower than in Erhualian sows(P<0 05).No significant differences in total protein concentration and pH were observed.Colostric proteins of crossbred and Erhualian sows were compared by SDS PAGE.Relative proportions of main proteins were analyzed.IgH proportion in crossbred sows was much higher than in Erhualian sows(P<0 05).Compared with Erhualian sows,Lf proportion in crossbred sows was markedly lower(P<0 01).Litter weight was much higher for crossbred vs.Erhualian sows(P<0 05),but litter sizes were similar.